Bug 24398: (QA follow-up) Add POD

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

Koha/NewsItem.pm

@@ -38,6 +38,14 @@ Koha::NewsItem represents a single piece of news from the opac_news table
 
 =cut
 
+=head3 author
+
+    $newsitem->author;
+
+Return the Koha::Patron object for the patron who authored this news item
+
+=cut
+
 sub author {
     my ( $self ) = @_;
     return Koha::Patron->_new_from_dbic($self->_result->borrowernumber);